How to Publish Tumblr to Facebook Pages
- 1). Launch an Internet browser and navigate to www.tumblr.com (see the link in "Resources").
- 2). Click the "Connect with Facebook" link.
- 3). Select the Facebook page you want to connect with your Tumblr page and click "Edit Page."
- 4). Locate the "Tumblr" app on the list displayed and click "Go to App."
- 5). Click on the name of your Tumblr blog that you want to publish. You will see a completion message. All of the posts you make to your Tumblr blog will also now appear under your Facebook "News Feed."
Source...